TorqueMech Beta
TorqueMech OBD Code Guide

P0325 - Knock Sensor 1 Circuit Malfunction (Bank 1)

Knock sensor circuit fault detected.

Code first. Confirm symptoms and checks before pricing parts.

Read code pattern Check likely system Estimate after confirmation

Code Overview

Knock sensor circuit fault detected.

Common Causes

  • Sensor failure
  • Wiring issue
  • Engine mechanical noise

Diagnostic Steps

  1. Inspect connector/wiring
  2. Verify sensor torque/installation
  3. Check for related engine noise

Likely Repairs & Cost Guides

Confirm the repair path before pricing parts.

Continue Estimate

Next Steps

Move from code to checks, then estimate.